Is there an elegant way to bridge two devices/streams in Asio?

Question

Given two stream-oriented I/O objects in Asio, what is the simplest way to forward data from one device to the other in both directions? Could this be done with boost::iostreams::combination or boost::iostreams:copy perhaps? Or is a manual approach better--waiting for data on each end and then writing it out to the other stream? In other words,how does one leverage Boost and Asio to produce a minimal amount of code?

An example application would be streaming between a serial port and TCP socket as requested in this question.

Answer 1

With standard C++ streams you can do the following, can't you do something similar with Asio?

// Read all data from in and write to out.
void forward_data( std::istream& in, std::ostream& out )
{
  out << in.rdbuf();
}